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A radioactive material has mean live of 1620 year and 540 year for a and b

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Mulching means A.raising the plants against slope B.shallow ploughing C.pla

asked Apr 11, 2019 by archanaanushasree

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In Young's double slit experiment, the 10th maximum. When the wavelength λ

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The correct order of reactivity of PhMgBr with

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How to find molality if mole fraction is given of that solution?

asked Apr 11, 2019 by nimittraj8693

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Find the rate of change of area of a circle having radius 'r' with respect

asked Apr 11, 2019 by shashisam1517

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. the chance that a ship arrives safely at a port is 0.9;find the chance th

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the vapour pressure of ethyl alcohol at 25 degree Celsius is 59.2 torr the

asked Apr 10, 2019 by rohansaxena858

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What is hydrarch?

asked Apr 10, 2019 by priyanka.clay6

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What is xeroarch?

asked Apr 10, 2019 by priyanka.clay6

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Give an account of energy flow in an ecosystem.

asked Apr 10, 2019 by priyanka.clay6

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Describe the major components of ecosystems.

asked Apr 10, 2019 by priyanka.clay6

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In general all pyramids are upright. Explain. What are the exceptions to this generalization?

asked Apr 10, 2019 by priyanka.clay6

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Justify the statement succession and evolution would have been parallel processes at that time when life started on earth.

asked Apr 10, 2019 by priyanka.clay6

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Describe pond as an ecosystem

asked Apr 10, 2019 by priyanka.clay6

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What are ecological pyramids? Mention its limitations.

asked Apr 10, 2019 by priyanka.clay6

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Give account of factors affecting the rate of decomposition.

asked Apr 10, 2019 by priyanka.clay6

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Detrivores like earthworm are involved in the process of decomposition of dead plants and animals. Describe the different steps involved in the process of decomposition.

asked Apr 10, 2019 by priyanka.clay6

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Why Allene’s show optical isomerism

asked Apr 10, 2019 by golisuresh.kumar16

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A body is thrown vertically upward with a unknown velocity. Distance travel

asked Apr 10, 2019 by tolgateraj

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If the function f(x)= {3ax+b if x>1 11 if x=0 5ax-2b if x<1

asked Apr 10, 2019 by rathnamohan2001

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Ecosystems should carry a hefty price tag for its various services. Enlist six of them.

asked Apr 10, 2019 by priyanka.clay6

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Calculate the boiling point of a solution containing 0.456 gram of camphor

asked Apr 10, 2019 by bhakti87pvw

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Both carbon and phosphorus cycles are biogeochemical cycles but they differ in three aspects. List them.

asked Apr 10, 2019 by priyanka.clay6

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Schematically show the flow of energy in a grazing food chain from the sun.

asked Apr 10, 2019 by priyanka.clay6

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Why is there a restriction on trophic levels in a grazing food chain? Is there such a limitation in the detritus food chain? Explain.

asked Apr 10, 2019 by priyanka.clay6

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What characteristic features are seen in Ecological succession?

asked Apr 10, 2019 by priyanka.clay6

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Define ecological succession. What is sere ?

asked Apr 10, 2019 by priyanka.clay6

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The ionization enthalpy of N is more than that of O because?

asked Apr 10, 2019 by navishnischay

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As succession proceeds the type and number of animals and decomposers also change.

asked Apr 10, 2019 by priyanka.clay6

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Name the pioneers and climax of primary succession in water and on rocks.

asked Apr 10, 2019 by priyanka.clay6

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For bcc lattice the edge length of unit cell is 500 pm. The molar volume of

asked Apr 10, 2019 by sarojerani

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Why is secondary succession faster than primary succession?

asked Apr 10, 2019 by priyanka.clay6

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What is the importance of humus?

asked Apr 10, 2019 by priyanka.clay6

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Define standing crop? How is it measured?

asked Apr 10, 2019 by priyanka.clay6

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Why Phosphorus cycle is called an imperfect cycle, while Carbon and Nitrogen cycle are perfect ?

asked Apr 10, 2019 by priyanka.clay6

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Mention two factors by which productivity is limited in an aquatic ecosystem.

asked Apr 10, 2019 by priyanka.clay6

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What are the differences between detritus and grazing food chains?

asked Apr 10, 2019 by priyanka.clay6

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Why is the length of a food chain in an ecosystem generally limited to 3-4 trophic levels?

asked Apr 10, 2019 by priyanka.clay6

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Gaseous nutrient cycle and sedimentary nutrient cycles have their reservoir. Name them. Why is a reservoir necessary?

asked Apr 10, 2019 by priyanka.clay6

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In a container box there are 5 red balls and 2 green balls. Randomly draw 2

asked Apr 10, 2019 by amaipou32

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Differentiate between primary succession and secondary succession.Which one occurs faster?

asked Apr 10, 2019 by priyanka.clay6

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Give an example of an ecological pyramid which is always upright. Justify your answer.

asked Apr 10, 2019 by priyanka.clay6

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Magnetic field in a plane electromagnetic wave is given by → ∧ B B sin

asked Apr 10, 2019 by manavjigarg

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Given below is a simplified model of phosphorus cycle. Write down the natural reservoir of phosphorus and also the processes that put in phosphorus to the soil.

asked Apr 10, 2019 by priyanka.clay6

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Two moles of an ideal gas are expanded isothermally from a volume of 15.5l

asked Apr 10, 2019 by nikhil9735

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define a relation R on Z, by R ={(n,n+3k)/k∈Z}. check whether R is an equ

asked Apr 10, 2019 by Mohitmalik488

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The x - intercept of the graph given below is :

asked Apr 10, 2019 by meena.clay6

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Given below is the primary hydrarch succession. Bring out the missing sere stages in the process.

asked Apr 10, 2019 by priyanka.clay6

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The following equations represents different curves. <br> $(a)\; x+4y =9 \qquad (b) y^2 = 8(x+3) \qquad (c)\; x^2+y^2 + 2x+3y+8=0$ <br><br> equation (a) represents

asked Apr 10, 2019 by meena.clay6

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